Piston-rod.



D. WHITT.

PISTON ROD. APPLICATION FILED JAH.4. 1911.

Patented Apr. 2, 1918.

DONA WHITT, 0F STANAFORD, WEST VIRGINIA.

PISTON-ROD.

menses.

v Application To all wlwm it may concern:

c it known that I, DONA Warm, a citizen of the United States, and resident of Stanaford, in the county of Raleigh and State of West Virginia, tain new and useful Improvements in Piston-Rods, of which the following is a speci fication.

My invention relates, generally, to reciprocating steam pumps; and the invention has more especial reference to a novel sectional piston rod therefor.

he principal object of the invention is to provide a sectional piston rod for multiple cylinder steam pumps, which can be readily disassembled when so desired in but a minimum space of time, thus eliminating the difficulty and labor usually encountered in taking down or removing piston rods from pumps of this character for repairs or the like.

As an object of equal importance, the invention aims to provide a couplin or union for the several the said coupling being so shaped as to provide means for permitting proper connection of the same with the slidab e cross head of the pump.

011g other aims and objects of the invention, may be recited, the provision of a device of the character mentioned with a View to compactness, and in which the number of parts are few, the construction simple, the cost of production small, and efliciency hi h.

ill of the foregoing together with additional advantageous details and arrangements of parts of the preferred embodiment of my invention will appear from the specific description hereinafter contained, when read in. connection with the accompanying drawings forming a part thereof, wherein said embodiment is illustrated for the purpose of facilitating a full underst nding of the present improvements.

In the drawings:

Figure 1 is a side elevation of a multip cylinder pump with my improved sectional piston rod applied thereto; and

ig. 2 is a detail in perspective of the piston rod.

Referring now more particularly to the drawings, wherein like reference characters designate like and corresponding parts throughout the several views thereof, I have shown in the present embodiment for the purpose of illustration my improved piston Specification of Letters Patent.

have invented oermg formet nally Patented Apr. 2, 1M8.

filed January 4', 1917. Serial No. 140,593.

rod as applied to the conventional type of multiple cylinder steam pump, the base of the said pump being indicated by the numeral 1, whereby, the cylinder 2 of the pump may be received thereon. A cross bar 3 is arranged upon the base 1 and serves to slidably support a cross head 4.

Referring now more specifically to the present improvements, the improved piston rod may be stated to comprise a plurality of sections 5 and 6, the opposite extremities of which are screw threaded as at 7; As will be noted, the screw threaded extremities 7 are reduced to provide substantially wedge like bearin spindles 5 and 6, shoulders be- Fat the jointures of the said spindles with their respective rods 5 and 6. Piston heads, not shown, placed over the spindles and 6 of the sections 5 and 6, while the inner extremities of'the sections are connected by the coupling, indicated in its entirety by the numeral 7. Obviously, the piston heads when placed on the spindles 5 and 6 will abut the several shoulders and thereby, be firmly seated. To remove the piston heads it is only necessary to tap the same lightly with a hammer or the like, which will loosen the same and permit easy removal thereof. The coupling comprises a substantially cylindrical like body having a centrally disposed longitudiextending screw threaded bore arends thereof hexagonal nuts 8 are formed. Thus, it is obvious, that to connect the sections 5 and 6, it is only necessary that the screw threaded inner extremities thereof be turned. into engagement with the longitudinal bore of the said coupling 7, the serving as means for other like implement bling operation. A recess or seal: 9 is formed dy 7 and is to the top thus, allowing the couseated upon said cross head to permit proper connection of the piston rod therewith.

From the foregoing, it will be appreciated, that I have provided a sectional piston rod which may be readily disassembled when it is desired to remove the same from the pump cylinders for repair or the like in but a minimum s ace of time and will di ense with the dliiicult and laborious method of hape complemental of the-cross head 4, pling to be readily are adapted to be disassembling employed in connection with like piston rods now prevalent in the art.

It is to be understood, that the longitudinally extending bore as formed within the body or coupling 7 may be oppositely screw-threaded, thereby permitting the coupling to be engaged with the inner screw threaded extremities of the sections 5 and 6 and readily turned into engagement therewith by applying a wrench or other similar implement to the nuts 8 as formed integral with the end portions thereof. It is also to be understood, that although I have in the description hereinbefore contained, specifically described the improved rod as being used in conjunction with multiple steam pumps or the like, that the same may be equally as well used upon various types of pumps and engines, such as conditions or preference may dictate.

' As hereinbci'ore indicated, I do not wish to be understood as confining the invention to the particular embodiments chosen for illustration, nor to the exact construction, arrangement and adaptation of the parts shown and described, but reserve the right to make any changes and alterations that fairly fall within the spirit and scope of the invention,

I claim:

1. In combination with the cross head of a multiple cylinder pump, a piston rod composed of a plurality of sections, and coupling means for connecting the sections, the said coupling means being shaped to permit seating of the same on the pump cross head.

:2. In combination with the cross head of a multiple cylinder pump, a piston rod composed of a plurality of sections, said sections having the opposite ends thereof screw threaded, and coupling means turned into engagement with said sections for connecting the same, said coupling means being shaped to permit seating of the same on the pump cross head.

3. In combination with the cross head of a multiple cylinder pump, a piston rod composed of a plurality of sections, said sectionshaving the opposite ends thereof screw threaded, coupling means turned into engagement with said screw threaded ends for connecting the sections, means arranged on the ends of the coupling for facilitating the engaging of the same with the sections, said coupling means being shaped to permit seating of the same on the cross head. 4. In combination with the cross head of a multiple cylinder pump, a piston rod composed of a plurality of sections, said sections having the opposite ends thereof screw threaded, coupling means turned into engagement with said sections -for connecting the same, nuts formed integral with the ends of said coupling to facilitate engaging of the same with said sections, the coupling means being recessed to provide a seat whereby to permit connection thereof with the pump cross ead.

5. In combination with the cross head of a multiple cylinder pump, a piston rod composed of a plurality of sections, said sections having the opposite ends thereof screw threaded, a cylindrical coupling body turned into engagement with the screw threaded extremities of the sections, nuts formed integral with the ends of said coupling body for facilitating engaging of the same with the sections, said coupling being recessed to provide a seat whereby to permit the arranging of the coupling on the pump cross head.

In testimony whereof, I aiiix my signature hereto.

Dona WHITT. 

